Intermittent visibility of task comments in Microsoft Teams Planner (New Planner App) for specific users

Question

Intermittent visibility of task comments in Microsoft Teams Planner (New Planner App) for specific users

Karol 0

Hi,

We have recently encountered a critical and very disruptive issue regarding task comments within Microsoft Teams Planner (the new Planner experience).

Problem Description: Random users within our team are completely unable to see comments inside specific tasks.

It is not a notification issue: We are not talking about missing email alerts. The comments are physically not visible within the task's chat/comment section inside the Teams interface for certain individuals, while other members of the same plan can see them perfectly.
Low comment volume: This happens even in brand-new tasks with only 2 to 5 comments. It is not related to the 100-comment thread limit or long task history.
Recent occurrence: This behavior started happening very recently, likely after one of the recent updates to the New Teams / Planner app ecosystem.

Has anyone else experienced this recently? Is this a known regression or a service degradation on Microsoft's end? Any advice on a permanent fix would be highly appreciated.

Thank you!

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2 answers

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Answer 1

Heimerdinger 295 Independent Advisor

Hi @Karol,

Thank you for posting on the Microsoft Q&A forum.

I understand how disruptive this can be, especially when task comments are being used for collaboration and only certain team members are affected.

Based on my research, I have not found any recent official Microsoft communication or service health announcement indicating a known incident or service degradation specifically related to task comments in the new Planner experience within Teams. That does not completely rule out a product issue, but at this time there does not appear to be any publicly announced incident from Microsoft.

To help narrow down the cause, could you please provide some additional information?

Are the affected users able to see comments in all tasks, or only in specific tasks?
Are the affected users members of the plan through the same Team, or are some of them guests/external users?
Are all affected users running the latest version of the Teams client?
If the affected users open the same task in Planner for Web, can they see the comments there?
Approximately how many users are affected, and are they all in the same department or location?
Have you noticed whether newly created comments are affected, or only older comments?

In the meantime, please ask one of the affected users to reset Microsoft Teams and test again:

Completely quit Microsoft Teams.
Open Settings > Apps > Installed apps.
1. Search for Microsoft Teams.
Select Advanced options.
Click Reset.
Restart the computer.
Sign back in to Teams and check whether the task comments are visible.

If possible, please also share:

A screenshot from an affected user showing that the comments are missing.
A screenshot from an unaffected user viewing the same task and comments.
The Teams desktop client version being used by both affected and unaffected users.

These details will help me better understand whether this is a client-side issue, a permissions-related issue, or something else.

Thank you again for your time and understanding. I really appreciate your patience, and I’m here to help. Looking forward to your response.

Karol 0 Reputation points

2026-09-03T09:03:09.23+00:00
Thank you very much for your quick response. I’m sending additional information that may help identify the problem.

Users affected by this issue can view the chats for all tasks, but often do not see new comments in those chats.

The users affected are members of a plan within the same team.

All users affected by this issue are using the latest version of the Teams client.

Sometimes they can see the comments, and sometimes they can’t. There’s no pattern here. Sometimes they see them in the app but not in the browser, and sometimes it’s the other way around.

There are about 10 users affected by this issue. They all work in the same department.

The issue affects newly added comments. Sometimes we can see them, and sometimes we can’t.

Thanks again!
Heimerdinger 295 Reputation points Independent Advisor

2026-09-04T14:04:29.4+00:00
Hi @Karol,

Thank you for providing those additional details.

Based on the information you've shared, the issue appears to be affecting multiple users within the same team, and the behavior is inconsistent across both the Teams desktop client and Planner for Web. Since the affected users are all internal members of the same plan, are using the latest Teams version, and experience intermittent visibility of newly posted comments, this may require a deeper investigation than what can be performed through the community forum.

In this case, I recommend contacting Microsoft Support so they can review the issue using internal diagnostic tools and investigate whether there are any service-side factors involved.

Submit a Service Request: Global Administrators can create a support request with Microsoft to obtain more advanced technical assistance: Get support - Microsoft 365 admin.   

If your subscription was purchased through a partner or reseller: Please contact your partner's support team and ask them to help open a service request with Microsoft on your behalf.

When opening the support case, I recommend including:

The Teams desktop client version of affected and unaffected users.

Screenshots showing the same task from both affected and unaffected users.

Approximate timestamps when comments were visible to some users but not others.

Confirmation that the issue occurs in both Teams and Planner for Web.

These details will help the support team investigate more efficiently.

Thank you again for taking the time to provide the additional information.

Answer 2

Scott Strausbaugh 1

@Karol were you able to find any correlation or open a support ticket? I have users experiencing the same issue only when User 1 makes an initial Task chat comment, then User 2 @mention of a User 1, but I am unable to reproduce it.

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